Diphthongizes
vt. 使双重元音化；读作双元音\\nvi. 变为双元音
🗣️ 情景例句
Was it serious?
病得很重吗？
What's your nationality?Are you a French?
你的国籍是什么？你是法国人？
Two main techniques have been used for training elephants,
驯象有两种主要的方法，